In 1923, aircraft were used to release titanium tetrachloride as a smokescreen to conceal ships at sea. When exposed to moisture in the air, the chemical produced a dense white cloud—made up not just of smoke, but fine droplets of hydrochloric acid and titanium oxychloride.

Phenomenal view of Artemis II from a plane

The three-body problem stumped Isaac Newton and Henri Poincaré—the latter even laying the groundwork for chaos theory while trying to solve it. A major breakthrough came in 2000, when Alain Chenciner and Richard Montgomery uncovered the famous figure-8 solution—shown in clip 4. In 2013, Milan Šuvakov and Vladimir Dmitrašinović expanded the picture further, identifying 13 additional families of solutions. Each clip represents a true numerical integration of Newton’s law of gravitation, F = G·m₁m₂/r², using equal masses—no tricks, no shortcuts. It’s a reminder that mathematics dating back to 1687 still holds deep and unexpected surprises. [🎞️ extract: From Infinity with Love]

GM NOSTR 🧡

GM 🧡

GM 🧡

Bom Jesus de Matozinhos Church in Barra do Guaicuí, Brazil. Dating back to the late XVII century, it was built with sandstone blocks from the Três Marias Formation, Bambuí Group. [📹 institutogeoatlantico]

Scientists have created one of the most detailed 3D reconstructions of a human cell (eukaryotic cell) ever produced. This groundbreaking model, often termed a "Cellular Landscape Cross-Section Through a Eukaryotic Cell," combines data from X-ray tomography, nuclear magnetic resonance (NMR), and cryo-electron microscopy to map molecular structures in extreme detail.

Visual proof that: 6 ⋅ (1² + 2² + ... + n²) = (n) (n+1) (2n+1) [🎞️ Beau Janzen / reason4math]

Magnus effect visualized by a tennis ball

The most thrilling hiking route in China